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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 09-21-2012, 09:18 AM
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diggyd357 diggyd357 is offline
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Location: Louisiana
 
Join Date: Sep 2012
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Mein Auto: 97 528I
Need help fast please read !!!!!

I'm facing a deadline today on a few ebay auctions .... I'm needing to replace my transmission control module, but I don't know which numbers I'm supposed to match. I keep hearing that "the numbers" have to match. Which numbers ??? There's like 5 sets of numbers..... Also, if I do get one with "matching numbers" can I just remove the old one and plug in the new one ? Or do I need to bring somewhere to have it programmed ? I'm pretty handy with auto repairs, but this BMW is a whole different story. Please PLEASE HELP !!!!!
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  #2  
Old 09-21-2012, 10:46 AM
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Nline6 Nline6 is offline
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Location: Portland, OR
 
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Mein Auto: E36 M3
If the numbers are the same, un hook the neg battery terminal and let the car sit for a few minutes, then plug and play. If the numbers are the same then the program is the same and the car shouldnt* know the difference. At least thats my luck when swapping out the DME, or ECU or whatever you want to call it. The numbers are on the control box it should look like a BMW part number.
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Old 09-21-2012, 11:14 AM
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diggyd357 diggyd357 is offline
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Thanks 9 6 !!! Im gonna go with whatcha know and order the part now. I cant thank you enough for the speedy reply !!!!
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Old 09-21-2012, 10:44 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
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Mein Auto: 02 BMW 525i M54 auto 130K
This might help:
- What is the definitive list of electronic computer modules that need recoding once replaced (1)
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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Old 09-22-2012, 06:51 AM
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diggyd357 diggyd357 is offline
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Location: Louisiana
 
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Ok...let me get this straight, its early and my head is still a bit cloudy lol....
Even if I match the TCM aka ECU it will be embeded with the other car's VIN meaning it will not work in my car ? I was told this same thing from a company that buys, sells and replaces ECU's , but figured it was just their way of securing business. I am torn thouvh because I've read of and heard about others replacing them "plug and play" and having i.stant success. So if anybody out there has some solid iinfo on the matter that can convince me one way or the othe PLEASE post it here. Ive already ordered the ECU I was originally posting about so I guess I'll know soon enough for myself, but Im dying to know now lol....
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